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Old 04-27-2021, 05:11 PM   #1
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External oil cooler

I have a 30 year old motorhome. ( GM chassis 454 ) I have a real concern about the oil cooler lines that go to the stacked cooler. This is an original setup and I'm afraid the the rubber lines don't have much life left in them.
does anyone know where I can find replacement lines for this. GM dealer does not have a clue.
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Old 04-27-2021, 05:21 PM   #2
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You should be able to google search a local shop that makes new hydraulic hoses that can custom make a new set, shouldn't be too terribly expensive, definitely cheaper than overheating your engine.
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Old 05-04-2021, 04:01 AM   #3
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We had a 92 Georgie Boy- loved it! We would probably still have it if we weren't in an unfortunate accident (100% the other guy) and totaled it.
Anyway, we had the same motor and probably tranny as yours. I believe your referring to the transmission cooler lines. You mentioned "rubber" lines. Are they a combination of steel and rubber? Thats how ours was. If you can remove them, take them to a local hydraulic shop. They can make up any line you need. I replaced both feed and return lines on ours, but bought the steel portion and bent them myself. I used a flaring tool to slightly enlarge the ends and then used standard transmission (3/8) hose with heavy duty hose clamps.
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Old 05-05-2021, 03:05 AM   #4
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Definitely not transmission lines. These come right off of the oil filter.
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Old 05-05-2021, 01:10 PM   #5
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I have the same set up as yours on my 1988 ford 460 .I think I would take them off like others have said and bring it to a hydraulic shop. I have to do the same thing for my power steering lines just been to busy and haven't had the time yet..
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Old 05-05-2021, 09:39 PM   #6
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Check with Ultra RV products, they make a custom replacement oil cooler line set for the later P32 chassis, I don't know if yours is different, though it is not cheap
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Old 05-06-2021, 04:25 PM   #7
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BA,

Look at where the rubber joins the metal. If there are hexes there then the steel lines are reuseable and all you have to find is a hydraulic place that can put new rubber in there. There are three such in SE MI, but I don't know where you are.

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Old 05-07-2021, 03:05 AM   #8
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I'm a little apprehensive about taking it to the guy in Howell because 3 different times I've taken something to him I've had to take it back because it would leak or would fit right. I'll have to look around.
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Old 05-12-2021, 06:02 PM   #9
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Oil Line

If you have Napa Auto Parts store in your area give them a call. I had them make a replacement hydraulic line complete with new fittings for about $30, and it only took about 15 minutes.

Another place here in the south is O'Riley Auto parts, I have had them make lines for me in the past also.

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Old 05-13-2021, 04:57 AM   #10
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I've had the same luck with my local auto parts making hoses. I put hydraulic levelers on a Holiday Rambler, because of the number of lines I didn't want to go that route again.

I looked around and found this place. Once you looked at how they worked they were simple to install and never leaked, and the system I installed had a 3000 psi pump.

Check with them and see if they've got reusable ends and hose you could use for the oil cooler, or if hydraulic hose would work.

https://www.discounthydraulichose.co...BoCXVkQAvD_BwE
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